On December 24, 2023, a TGV driver named Bruno Rejony tragically jumped from his moving train, leading to significant delays on the Sud-Est high-speed line. His funeral will take place on January 3 in Saint-Étienne, with a union tribute planned. The event caused disruptions for thousands of travelers during Christmas Eve. A judicial investigation is ongoing to ascertain the circumstances surrounding his death, and a psychological support unit has been established to assist those affected.